geovista.geometry

Provide Natural Earth geometry support.

ノート

Added in version 0.1.0.

Functions

coastlines(*[, resolution, radius, zlevel, zscale])	Create or fetch the cached mesh of the coastlines.
load_coastline_geometries(*[, resolution])	Download Natural Earth coastline shapefile for the required resolution.
load_coastlines(*[, resolution, radius, zlevel, zscale])	Create a mesh of coastline geometries at the specified resolution.

モジュール内容

geovista.geometry.coastlines(*, resolution=None, radius=None, zlevel=None, zscale=None)

Create or fetch the cached mesh of the coastlines.

Parameters:

resolutionstr, optional

The resolution of the Natural Earth coastlines, which may be either 110m, 50m, or 10m. Defaults to geovista.common.COASTLINES_RESOLUTION.

radiusfloat, optional

The radius of the sphere. Defaults to geovista.common.RADIUS.

zlevelint, default=1

The z-axis level. Used in combination with the zscale to offset the radius by a proportional amount i.e., radius * zlevel * zscale.

zscalefloat, optional

The proportional multiplier for z-axis zlevel. Defaults to geovista.common.ZLEVEL_SCALE.

Returns:

PolyData

A mesh of the coastlines.

ノート

Added in version 0.1.0.

geovista.geometry.load_coastline_geometries(*, resolution=None)

Download Natural Earth coastline shapefile for the required resolution.

If the geometries are not already available within the cartopy cache, then they will be downloaded.

The 2D longitude (φ) and latitude (λ) xy coastline geometries will be unpacked as 3D xy0 coordinates i.e., φλ0.

Parameters:

resolutionstr, optional

The resolution of the Natural Earth coastlines, which may be either 110m, 50m or 10m. Defaults to geovista.common.COASTLINES_RESOLUTION.

Returns:

list of np.ndarray

A list containing one or more coastline xy0 geometries.

ノート

Added in version 0.1.0.

geovista.geometry.load_coastlines(*, resolution=None, radius=None, zlevel=None, zscale=None)

Create a mesh of coastline geometries at the specified resolution.

Parameters:

resolutionstr, optional

The resolution of the Natural Earth coastlines, which may be either 110m, 50m, or 10m. Default to geovista.common.COASTLINES_RESOLUTION.

radiusfloat, optional

The radius of the sphere. Defaults to geovista.common.RADIUS.

zlevelint, default=0

The z-axis level. Used in combination with the zscale to offset the radius by a proportional amount i.e., radius * zlevel * zscale.

zscalefloat, optional

The proportional multiplier for z-axis zlevel. Defaults to geovista.common.ZLEVEL_SCALE.

Returns:

PolyData

A mesh of the coastlines.

ノート

Added in version 0.1.0.

Calls load_coastline_geometries() to download the original coastline geometries.